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Journal Info

Title: Studia Universitatis Vasile Goldis, Seria Stiintele Vietii (Life Sciences Series)
Abbreviated title: Studia Univ. VG, SSV
Publisher: "Vasile Goldis" University Press
Owner: Western University "Vasile Goldis" Arad, Romania
ISSN: 1584-2363
e-ISSN: 1842-7863
ISSN-L: 1584-2363

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Vacuole formations identified in the cells of the foliar Mesophyll of the young leaves of Sedum telephium ssp. maximum harvested from natural environment Print E-mail
Written by Ardelean M., Cachiţă-Cosma D., Craciun C.   
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Article Title: Vacuole formations identified in the cells of the foliar Mesophyll of the young leaves of Sedum telephium ssp. maximum harvested from natural environment
Authors: Mirela Ardelean1, Dorina Cachiţă-Cosma1, Constantin Crăciun2
Affiliation: 1. “Vasile Goldiş” Western University from Arad, Romania
2. Electron Microscopy Center, „Babeş- Bolyai” University, Cluj-Napoca, Romania
Abstract: The examinations of the electronic microscopy made by us permitted the evidence in the vacuoles of some cells of the foliar mesophyll of the young leaves of Sedum telephium ssp. maximum, driven from the natural environment, of some measures hard to distinguish from the optical microscopy examinations, like the fine crystals of calcium oxalate, either as wise, either having attached corpuscles of phospholipidic nature, strong electron dense, making organic-molecular conglomerates, either filiform aggregates, scattered in the aggregation of the vacuole, either spheroid phlocular formations (we believe of mucilaginous nature), elaborated by the elements of the Golgi apparatus, which were moved towards the vacuole while being created, they crossed by the tonoplast and were spread in the vacuolar sap, by the golgi vesicles. The transversal section practiced through the spheroid aggregations multifibriliar, present in the vacuolar sap of some mesophilic cells from Sedum telephium ssp. maximum leaves facilitated the discovery in the structure of the filiform aggregates in the spheres areas. So, the external area of the sphere remains multifibriliar, but made of fibers grouped in different light facsicles; towards, the interior of the sphere it comes out another optical clear area, without fibrils; but in the center of the sphere can be distinguished a third area occupied by multitude of fine floccular aggregates, apparently unorganized. Gradually, such spheroid formation constituted in three- phases proportion as they appear to invade the lumen of those cells and the cellular organites are disintegrated and the cells become „deposits”, probably of mucilage’s.
Keywords: foliar Mesophyll, leaves, Sedum telephium ssp. maximum
References: Cachiţă C. D., Ardelean A. (2009) – Tratat de biotehnologie vegetală, vol II; Ed. Dacia Cluj-Napoca.
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